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netineya [11]
2 years ago
5

(x+y,y+3)=(6,2y) find the value of x and y​

Mathematics
1 answer:
trasher [3.6K]2 years ago
8 0

Step-by-step explanation:

Solution:

Given:-

(X+y,y+3)=(6,2y)

Equating corresponding elements,we get,

X+y=6------(1)

y+3=2y-----(2)

solving equation (2),

y-2y=-3

-y=-3

y=3.

Now, substituting y=3 in equation (1)

X+3=6

X=6-3

X=3

Therefore,. (X,Y) = (3,3)

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because if dora can plant 18 plants then Charlie can plant 21 flowers

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Multiply 5,5,5,5 4 times which gives me 625
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If Happie had ridden exactly 100 feet in 25
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An ornithologist has 4 bird feeders at separate locations. She wonders if birds are equally likely to visit each of the feeders.
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Answer:

the x² test statistic 13.71

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Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

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data sample = 300

Expected e_i = 300 / 4 = 75

the x² test statistic = ?

X^2_{stat = ∑[ (o_i - e_i)²/e_i]

X^2_{stat = [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]

X^2_{stat = [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]

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Option a) 13.71 is the correct answer.

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